Metallic roofing



Oct. 14, 1941. G. w. ARNOLD 2,259,194

METALLIC ROOFING Filed March 6, 1941 Giza Wflrno Zd,

Patented Oct. 14, 1941 METALLIC ROOFING Guy Wallace Arnold, Indianapolis, Ind., assignor to Continental Steel Corporation, Kokomo, Ind.,

a corporation of Indiana Application Marc-11.6, 1941, Serial No. 382,064 3 Claims. 01. 108-18) This invention relates to metallic roofing and the primary object thereof is to provide a roofing whichhas improved means for draining water which might get beneath the roofing, especially in a driving rain storm. v

A further object of the invention is to provide a metallic roofing which avoids excessive capillary action to thereby afford maximum protection against water entering beneath the underside of the roofing.

A still further object of the invention is to provide means for draining the water from the top surface of the roofing.

A still further object of the invention is to provide a novel type of roofing which is of greatly increased strength at the junctural points between the adjacent sheets or sections of the roofing.

Still further the invention aims to provide a joint wherein the fastening means for the metallic roofing acts to also maintain efiective tension on that part of the joint where capillary action could occur thereby to eliminate such action.

Still further the invention aims to provide a joint which is of maximum strength and at the same time compact, so as to bring the elements into close and mutually embracing relationship, ,and wherein all of the elements are securely and effectively held in position by the fastening elements, more specifically the customary nails, or the like. a

.The invention also aims to provide a joint,

away of a section of roofingconstructed in accordance with the present invention.

In proceeding in accordance with the present invention the roofing is composed of like metal 1 sheets or sections I, and I each having an intermediate inverted U-shaped strengthening rib 2. Each .section adjacent one side thereof, is formed with an inverted substantially U-shaped member 3, which terminates in a substantially U-shaped member 4, the inner side leg of the latter being common to the outer side leg of the inverted U-shaped portion 3 as shown at 5, while the other leg 6 of the U-shaped member 4' is free and terminates at the side edge t2 of the sheet. The other side of each sheet is formed with an inverted substantially U-shaped member I, the

vtop 8 of which centrally is formed with a longitudinal depressed portion 9, that forms a trough or channel for the water. a

The outer leg ll) of the inverted U-shaped portion I it will be noted, is of less width than that of the other leg H, of the inverted U-shaped portion 1. I

As clearly shown in Figs. 1 and 2, one of the sections for the sake of clarity is designated l, andis laid on the usual roof R, with the bottom or base 4 of the U-shaped member 4', seated on top of the roof. Then the other section I, has its inverted U-shaped portion 1 placed on top of the horizontal top portion 3' of the inverted U-shaped portion 3, so that the outer leg 6 of the U-shaped portion 4' of section I has its terminal edge I 2 engaging in the angle [3 formed by and between leg H, and the adjacent part of the top 8, of the inverted U-shaped portion 1, so that lateral movement of the leg 6, is prevented, and the parts mutually brace and thereby provide a strong and rugged construction.

The fasteners, here shown as headed nails l4, arethen driven through the top 8 of the in-' verted U -shaped portion I and the top 3' of the inverted U-shaped portion 3 of the section I, the heads of the nail being firmly seated on the upper surface of the top 8 of the inverted portion I to cause the wall l5 at the inner sideof the trough 9 to firmly seat against the leg 5,

which latter is common to the inverted U-shaped portion 3 and the U-shaped portion 4, thus acting not only to brace the leg 5, but to also form a close and tight joint between the leg .5 and the wall l5, maintaining these parts under tension; and acting to provide an additional seal against entry of the water into the U-shaped portion or member '4.

At the same time it will be noted that the leg ID of the inverted U-shaped portion l,'snugly and conformably fits against the leg iii of the inverted U-shaped portion 3. The leg ID has its lower edge terminating at a spaced distance from and above the upper surface of the section l', for the purpose of preventing any excessive capillary action which would occur if the leg It! were extended to contact with or lie closely adjaf cent to the upper surface of the body of the section I.

However, any water which possibly might sucvceed in passing between the legs l and I6, and

which would enter the inverted U-shaped portion 4', will be drained and carried away by the lat-.-

of the first section being disposed at substantiter. The member 4' thus acts as a drip or drain channel for any water which might get beneath the inverted U-shaped-member I, especially in a driving rain storm.

From the foregoing it will be seen that the invention provides a simple, economical and compact joint construction between adjacent roofing plates or sections, and one in which the parts mutually brace and thereby strengthen each other, and are all held in firm and rigid position on the roof and in relation to each other by means of the fastenin nails I.

It will further be seen that even though an extremely strong wind might lift the lower edge of the member l0, and rain thereby driven inwardly of the joint, the rain will be trapped in the drain channel 4'. Also, due to the close engagement between the. parts ll, -8 and II, as shown at H in Fig. 2, it is practically impossible for rain to pass the leg 6 and thereby contact the roof, since the depression 9 acts to deflect water entering the drip channel '4', and thus prevents water from travelling horizontally and down the leg I I. v

It will be understood of course that the'sheets are constructed as shown in Fig. 3,,with adja-' cent sheets joined or coupled-as shown in Figs. 1 and 2, thus the described constructions at the respective ends of the sheets constitute joint iorming members when the sections are assembled as depicted in Figs. 1 and 2.

It is also to be expressly understood that the present invention is susceptible to such changes,

alterations, or modifications, as'may fall within the scope of the appended claims.

What is claimed is: v 1. In a metallic roofing, a joint between adjacent sections including an inverted substantially U-shaped portion adjacent a side part of one section terminating in a substantially U -shaped por-' tion, the inner leg .of the latter being common to the outer leg of the inverted -U-shaped portion, and the other leg of which U-shaped portion formed by-the edge portion of said side part of the section, and a second section having a side part thereof formed with an inverted substantially U-shaped portion that overlies and seats upon the top of the inverted U-shaped portion of the first section and receives in the angle between its inner. leg and its top the terminal edge of the outer'leg'of the U-shaped portion of the first section and having its 'outer leg con- Iormably engaged over the inner leg of the inverted U portion of the first section and terminating in spaced relation to the upper face of the first section, the legs oi. the U-shaped portion ally similar angles to the base of said last named U-shaped portion, and being of substantially equal height, the outer leg of said last named U-shaped portion having its free edge engaged with the inner leg and top of the inverted U- shaped portion of the second section in the angle formed by and between said inner leg and top of the inverted U-shaped portion of the second section whereby to brace the said inner leg and top and a nail-like fastener extending through the top of the inverted. U portion of the first section and the top of the U-shaped portion of thesecond section that seats thereon so as to hold the sec tions in assembled relation.

2. A metallic roofing in accordance with claim 1, wherein the top of the inverted U-shaped portion of the second section is flat and has a longi- U-shaped portion adjacent a side part of one section terminating in a substantially U -shaped portion, the inner leg of the latter being common to the outer leg 01' the inverted U-shaped portion, and the other leg of which -U-shaped portion is formed by the edge portion of said side part of the section, and a second section having a side part thereon formed with an inverted substantially U-shaped portion the top of which latter isfiat and overlies and seats upon the top 'of the inverted U-shaped portion of th first section. and having its outer leg conformably en- .gaged over the outer leg of the inverted U portion oi the first section, said fiat top of the inverted U-shaped portion of the second section having a longitudinal depression of substantially U-shape that projects downwardly into the U-shaped por-- tion of .the first section, said longitudinal depression having each of its side walls disposed with space between same and the adjacent-legs of the U-shaped portion of the first section, whereby said depressed portion acts to deflect water downwardly at points spaced irom each of the said last named legs thereby to prevent the water from travelling horizontally across the flat top, and a nail-like fastener extending through the top of the inverted U shaped portion of the first section and the top of the -U-shaped portion of the second section that seats thereon so as to hold the sections in assembled relation.

GUY WALLACE ARNOLD. 

